Improvement in machine foe connecting steips of metals



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HERY A. BARTLETT, OF PHILADELPHIA, PENNSYLVANIA. Letters Patent llro. 68,547, dated September 3, 186?.

IMPROVEMENT In MACHINE ros eoMNscTnve STRIPS or METALS.

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- Befit known that I, HENRY A. BARTLET'L, of Philadelphia, in the-county of Philadelphia, and in the State of Pennsylvania, have invented a new and useful Machine for Connecting Strips of Metal for boxes aud-other purlposes;. and I do hereby declare that the following is a^full,'clenr, and exact description thereof, reference being had tothe accompanying drawings, in which'- Figure 1 is afrout view ofthe invention.

Figure 2 is a. plan view of the same; -and Figure 3 is a vertical section with one side of the frame removed.

The nature ofmy'jinvention consists of a device `of mechanical means for riveting together the ends of' thin metal strips for forming metal boxes by pressure, as hereinafter described.

To enable othersgto make and use my invention, I will proceed to describe-its construction and operation for the use of those skilled in the art.

In,l theconstruction of my invention I form a-base or foundation of wood, A, on which is placed ametal frame, C C C, to which are attached the mechanical devices composingthe operating parts'of my invention, in which D and D are the former, seen in fig. 1; g, the lower punches; g g, the upper punches; c, the swing-4 -ing arm o r lever,to the lower ends of which are attached the upper punches g g; f, the lever to which the former-1D is secured, and which former is detachable wheniclesired to use one of different size; e is a connectingrod, with spiral springs, attached nbovc'and bclow lever e, which lever e is attached by a sliding collar, as seen in fig. 2, to the said rod, which rod is also attached to lever z' as-a crank on the end of shaft B. On said shaft is a gear-wheel, p, which gears into a driving-wheel, p, on shaft B. On said shaft B is a slidingsclutc'h attached lto and operated by lever b, for placing the machine in gear and throwing it out of-gear. The inner endot the hub of the drivingr or belt-wheel has portions of its sides cut away to allow clutch a to catch in it. The Fulcrum of lever 6 is secu at b', fig. 2, and is kept in place by staple d, fig. 2. d d are the bearings of the shafts lB and B. The punches or dies g and g and g are easily attached vand detached, when required so to do, by the screws e. A is a bandswheel for applying the power.

In the operation of my invention the poweris applied by a band or otherwise to band-wheel A', and the operator places the strip of metal on the former D', with the ends lapped directlyover the dies g' or punches, where it is steadily held by the same; the clutch is then thrown in gear, and motion is given to the machine.; operatingthe dies or punches by means of the various levers, causing the punch or dieg to move up and the -dies g and g to move down on the metal, alternately punchingr the metal and pushing it through, but not cut-A ting it out, only at the sides, andthe twodies or punches are mn'deto press together, hard enough to atten the same and rivet the ends of the-metal together, with one motion of the'machine, by direct pressure, instead of a roller or a. hammer, by a. blow, thus forming the sides of a metal box.y From the shape of lever e it is caused to move at the end, when the dies g and g are fastened, so asto bring said dies alternately in contact with the die g. The dies can beregulated in or out by means of the screws, or removed and replaced in the same manner. When the piece of metal has been punched and riveted 'the lever b is operated on by the cam t on wheelp, thusy throwing the clutch out of gear and stopping the machine until another piece is placed on the former D,`when the operation is repeated as already described. The former can be easily removed in o`r out by means of a. slot and screw, s, in g. 3, or readily detached if required. It will be seen that the dies or punches pass into or past each other, thus cutting and pressing the indentation of the under part cut of the strip into the upper end of the strip, when they are riveted together, as already described.

Having thus described the construction and operation of my invention, I am aware that the indentations of themselves are not new, as metal strips have been before indented and riveted together by rollers,- and by a blow with'n hammer; therefore I do not claim a machine for simply-indenting the strips 'and passing them through or into cachl other; but what I do claim vas 'new and my invention, and desire tov secure byIictters Patent, is- A 1'..I clnimthe former D and D, diesg, g', and g, when constructed-and operating substantially in the manner and for'the purposes set forth. p l

2. I claim the combination of the clutch,c.s described, with the former D', by means of levers e, e,f, o, z', rj, Z, and m, the whole operating substantially as described, and for the purposes set forth.

In testimony that I claim the above-described invention I have hereunto sig-ned my'name this thirty-first day of July, 1866. l

- H. A. BARTLETT.

Witnesses T. Human-nr ONYX,

Jo. C. CLAYTON. 

